OBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS

ArlingtontoWashington Street

Green Line

A direct MBTA train from Arlington to Washington Street took a median 29 minutes across 3,343 observed trips; 90% of measured rides finished within approximately 34 minutes.

Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only

Typical29 min50th percentile
Slower trip34 min90th percentile
Scheduled31 minmedian timetable
On pace85%within 2 min of schedule

THE SHORT ANSWER

How long does Arlington to Washington Street take?

The median completed ride from Arlington to Washington Street was 29 minutes; the published schedule’s median was 31 minutes.

Based on 3,343 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 29 minutes. That was within 2 minutes of the published schedule.

Nine out of ten measured trips finished within approximately 34 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.

WHEN YOU TRAVEL

Arlington to Washington Street times by daypart

Morning rush produced the fastest median for Arlington to Washington Street; Evening rush produced the slowest.

Differences can change as the rolling dataset updates.

Morning rush

27 min 647 trips · 92% on pace

Midday

30 min 904 trips · 85% on pace

Evening rush

31 min 608 trips · 80% on pace

Off-peak

29 min 1,184 trips · 84% on pace

MEASUREMENT SAMPLE

How Arlington to Washington Street was measured

The Arlington to Washington Street estimate uses 3,343 completed direct-trip stop-timestamp pairs matched to the schedule active for each observed train.

We publish the median because one dramatic delay should not define an everyday journey, and the 90th percentile because riders still need to understand the bad end of normal.

We do not infer why a trip ran slowly. Construction, incidents, crowding and weather require separate evidence.

Read the complete method →